Knapp, Brian J. Challenge of the human environment / B. J. Knapp, S. R. J. Ross and D. L. R. McCrae - Harlow : Longman, 1992. - 272 p. : ill.,maps ; 24 cm - Longman advanced geography . Includes index ISBN: 0582016371 Source: B-14293 Nat. Bib. No.: GB-8934157 Subjects--Topical Terms: Human geography LC Class. No.: GF 125.K62 1992 / .K62 1992